<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>页面未找到 - 404错误</title>
    <style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
        }
        
        body {
            background: #f5f7fa;
            color: #333;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 2rem;
            text-align: center;
        }
        
        .container {
            max-width: 500px;
            width: 100%;
            background: white;
            border-radius: 10px;
            box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
            padding: 3rem 2rem;
        }
        
        .error-code {
            font-size: 6rem;
            font-weight: 700;
            color: #667eea;
            margin-bottom: 1rem;
        }
        
        h1 {
            font-size: 1.8rem;
            color: #4a4a4a;
            margin-bottom: 1rem;
        }
        
        p {
            font-size: 1.1rem;
            color: #666;
            line-height: 1.6;
            margin-bottom: 2rem;
        }
        
        .btn {
            padding: 0.8rem 1.5rem;
            border-radius: 5px;
            font-size: 1rem;
            cursor: pointer;
            transition: all 0.3s ease;
            text-decoration: none;
            display: inline-block;
            background: #667eea;
            color: white;
            border: none;
        }
        
        .btn:hover {
            background: #5a6fd8;
            transform: translateY(-2px);
            box-shadow: 0 5px 10px rgba(102, 126, 234, 0.3);
        }
    </style>
</head>
<body>
    <div class="container">
        <div class="error-code">404</div>
        
        <h1>页面未找到</h1>
        
        <p>抱歉，您要查找的页面不存在。</p>
        
        <a href="./home.html" class="btn">返回首页</a>
    </div>
</body>
</html>